Cambridge Colour Test: reproducibility in normal trichromats

Fernandes, T.P. and Santos, N.A. and Paramei, Galina V. (2020) Cambridge Colour Test: reproducibility in normal trichromats. Journal of the Optical Society of America A, 37 (4). A70-A80. ISSN 1084-7529

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This study evaluated reproducibility of the Trivector subtest of the Cambridge Colour Test. Data for normal trichromats were obtained in Brazil (N=111) at T0, six (T1), and 12 months later (T2), and in the United Kingdom (N=79), with test directly followed by a retest. Coefficients of repeatability – Bland-Altman indices – for Protan, Deutan, and Tritan vectors were similar for both datasets. Intraclass correlation coefficients (ICCs) – measures of reliability – were low or moderate for these relatively homogeneous datasets; for a heterogeneous dataset, comprising color-normal and abnormal observers, ICCs were 0.80–0.98, indicating high discriminative accuracy of the Trivector subtest.

Item Type: Article
Additional Information and Comments: This is the author's version of an article that was accepted for publication in Journal of the Optical Society of America A. The final, published version is available online at:
Faculty / Department: Faculty of Science > Psychology
Depositing User: Matthew Adams
Date Deposited: 28 Jan 2020 11:37
Last Modified: 18 Apr 2020 09:35

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